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halo,
i am using the msp430g2452 and i download the source code from ti website.
it has tutorial for creating pwm for port 1.2.
then i notice at the data sheet msp430x2xx family (page 368)
show how to create pwm using taccr2. So i try to modify the source code as follow:
//
// MSP430G2xx2
// -----------------
// /|\| XIN|-
// | | |
// --|RST XOUT|-
// | |
// | P1.4/TA1|--> CCR2 - 75% PWM
//
#include <msp430g2452.h>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
P1DIR |= 0x10; // P1.4 output
P1SEL |= 0x10; // P1.4 options
CCR0 = 512-1; // PWM Period
CCTL2 = OUTMOD_7; // CCR2 reset/set
CCR2 = 384; // CCR2 PWM duty cycle
TACTL = TASSEL_2 + MC_3; // SMCLK, up/down mode
_BIS_SR(CPUOFF); // Enter LPM0
}
the highlight one is the code i changed.
i get output but frequency same as DCO ( frequency cant be modfied using ccro),
and duty cycle is 50 percent regardless the ccr2 value given.
so my question is does msp430g2452 has 2 pwm?
and if it does how can i modify the frequency and duty cycle of second pwm?
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